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HOME > El Niño Monitoring > Pacific Decadal Oscillation (PDO) index > Monthly Pacific Decadal Oscillation (PDO) index

Monthly Pacific Decadal Oscillation (PDO) index

Monthly PDO index time series

The red (blue) shading represents positive (negative) monthly PDO index values. The solid black line represents three-month running mean values.




Explanation of Pacific Decadal Oscillation (PDO)
North Pacific Index
Pacific Decadal Oscillation (PDO) index
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